In the CMC add the new nodes by going “Find Systems” and entering the IP addresses you assigned to the nodes

Under “Available devices” go to the TCP/IP settings of each node and create a bond so the two NICs become one and choose a load balancing type.

Go to http://webware.hp.com/ and generate your license keys. Each unit comes with an entitlement certificate. You’ll need to provide the Feature Key (MAC Address) which can be found in the CMC under “Feature Registration” for each node. When you get the key replace the one that’s in there by default.

Right click the units and add them to an existing management group (or create a new one)

Now that You have the units in the management group add them to an existing cluster (or create a new one)

Nodes must be of equal or greater capacity to existing nodes in a cluster. If they are of greater capacity then only the capacity of the smallest node in the cluster will be usable – Maybe time to create a new cluster?